It looks like they have basically adopted the coding conventions of windows API code, down to the /
++ --/ comments, style of declaring functions, uppercase types etc. Not that it's is a bad thing, just something I noticed.
Also things like KeCrashSystemEx look very much like KeBugCheckEx in Windows. There certainly is a lot of inspiration.
Edit: I see from Linkedin the OP is actually an ex-MSFTer who worked on Windows' HAL, so this makes sense. I wonder, tho, if this will present legal issues? Could someone say that it is an issue that the API is clearly inspired by the Windows API?